Pump.



,PATENTED JAN. 1, 1907.

T. BUTLER.

PUMP KFPLIOATION FILED SEPT.-15. 1905.-

' im rovements in thee'ectors. I

UNITED STATES PATENT OFFICE.

I No. 840,430.

Specification of Letters Patent.

Patented Jan. 1, 1907.

Application filed Septemliar 15, 1905. Serial No. 278.628.

To all whom it may concern:

Be it 'known that I, THOMAS BUTLER, a citizen of the United States, residing at Fort Worth, Texas, have invented certain new and useful Improvements in Pumps, of which the following is a specification.

My invention relates to pumps, and particularly to pumps for deep wells, and the object is to provide apparatus for pumping oil, water, sand, and other articles from deep wells; and the invention consists of certain improvements on the Letters Patent No. 660,946, issued to me on October 30, 1900, for apparatus for pumping water, sand, &c. The present invention consists of certain her objects and vantages will be fully explained in the following description, and the invention will be more particularly pointed out in the claim.

Reference is had to the accompanying drawings, which form a part of this app ication and specifioation.

Fi e 1 is a vertical section the tfi s hhargeipe, and the ejectors. Fig. 2 is an enlar ed orizontal section of the upper ejector, ta on along the line a: a: of Fig. 1. Fig. 3 is an enlarge horizontal section 0 the second ejector or lower ejector, taken along the line 1 of Fig. 4. Fi 4 is a vertical section of the lower ejector, i s. 3 and 4 showing a slight variation from t e ejector shown in Fi 1.

This invention is rovided with a casing 1 and a ca 2, screwed thereon. A dischar e-' of the casing,

pipe 3 a so connects with the cap 2. T e

ischargeipe 3 is intercepted by ejectors 5 and 4. T e ejector 4 consists of a casting having an enlargement or boss on each side thereof and a threaded opening through each boss to receive the small ejector-pipe 6. The ejector 4 is screwed on the pipe 3, and sectlon 7 of the discharge-pipe is screwed into the ejector 4. The e ector 5 consists of a casting screwed on the pipe 7. This ejector has a series of small 0 enings 8 to receive air. The lower part of the ejector 5 may be threaded interiorly and the discharge-pi e sect1on 9 screwed into the ejector. If t e ejector is constructed as shown in Fig. 1, the part of the pipe 9-'which projects up wlthin the ejector should be smooth and without threads. This ejector may be constructed as shown in Figs. 3 and 4. This form of the ejlector contains an annular recess 10 within t e interior part thereof, and an annular interior flangel 11 projects upwardly some distance higher up than the series of air-openings 8. The flange 11 will deflect the air upwardly, so that the inrushing air will not interfere with the flow of water through the discharge-pipe. In the form shown in Fig. 1 the upper part of the pipe 9 would perform this service. A suitable service-pipe 12 may be connected ing-gland 13 may be provided for the pipe 12 A. pipe 14 may be connected to any suitable air-compressor for forcing air intothe casing 1 above the water.

The drawings do not indicate the dimensions of the pipes for deep wells. If the wa ter is a proximately one hundred feet from the s ace, the lower ejector should be aproximatel ace, and the upper ejector should be about one hundred feet above the lower ejector. The ipe-section 9 should reach approxi- .mate y forty feet below the lower e ector.

Should the pipe 9 terminate too close to the air-inlets 8, the pressure on the surface of the water mi ht cause the air in great quantities to enter t e mouth of the pipe and cause the water to be thrown out with too great force and would be dangerous.

In operation the pressure of the air on the surface'of the water forces the water up the discharge-pipe, beginnin with section 9'. I have provided two auxi iary air-lifts in the ejectors 4 and 5. The air entering the apertures 8 aids in forcing the water upward, and the ail-entering the small ipes 6 also aids in forcing the water upwar This invention has been demonstrated to be highly efficient, and pumps equipped with the hereindescribed ap aratus are in daily use.

Having fully described my invention, What I claim as new, and desire to secure by Letters Patent, is-

A water-pumping apparatus having a water-tight casing, a discharge-pipe enterin said casing, a lower ejector intercepting sai discharge-pipe andprovided with air-inlets and means for deflecting the air from said inlets upward, an upper ejector intercepting five hundred feet below the surwith the cover 2, and a packresence of two witnesses, this 5th day of said dischargeipe and having bosses on the eptember, 1905.

outside thereo and small aif-mlet pipes enteriES-said ejector throuihsaid bosses, said air-' et pipes extendin elow the air inlets I v 5 of the lower ejector, an a pipe entering said Witnesses:

casing for admitting compressed air. A. L. JACKSON In testimony whereof I set my hand, in the I J. STITT.

THOMAS BUTLER. 

